FUND OF ENG THERMODYN(LLF)+WILEYPLUS
9th Edition
ISBN: 9781119391777
Author: MORAN
Publisher: WILEY
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Subject: Thermodynamics Ishow your solution
subject: thermodynamics
In an ideal Rankine cycle, steam is generated at 4.1 MPa and 486.5°C. The condenser is at 32°C. Determine: (Sketch the T-S Diagram and Schematic Diagram of the cycle)
a.The ideal pump work b.The cycle thermal efficiency
A. Problem solving
A steam power cycle has a boiler pressure of 10 MPa and temperature of 330°C. The condenser
pressure is 0.1 MPa. The stage efficiency of the turbine is 86%, mechanical efficiency is 88%, and
generator efficiency is 96%. Determine the following:
a.
Total heat added
b. Total turbine work
C.
Heat rejected in the condenser
d. Total pump work
e. Net cycle work
f.
Cycle thermal efficiency
g.
Engine thermal efficiencies (ideal, indicated, brake, combined)
h. Steam rates (ideal, indicated, brake, combined)
Heat rates (ideal, indicated, brake, combined)
1. Considering a simple Rankine cycle
2. Considering a reheat cycle with reheat pressure of 2 MPa
3. Considering a regeneration cycle with regeneration pressure of 2 MPa
4. Considering a reheat-regenerative cycle with pressure of 2 MPa simultaneously.
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- What is the dryness fraction at state 6 to 3 d.p.arrow_forwardQ1: A Carnot engine with H₂O as the working fluid. The circulation rate is (1Kg/sec) for conden: temperature 300K and boiler temperature 475K.Determine: 1. The quality at the inlet and outlet points of condenser. 2. The rate of heat addition. 3. The rate of heat rejection. 4. The power for each of the four steps. The thermal efficiency of the cycle. 5. T/K P/kPa H/(k J/kg) H/(k J/kg) S/(k J/kg.K) S/(k J/kg.K) 300 3.533 112.5 2550.6 0.3929 8.5200 475 1616.0 860.7 2792.0 2.3482 6.4139 Q2: Explain with draw the development steps of Ranking cycle on T-S diagram.arrow_forwardA conventional LiBr-water absorption cycle operates at the following temperatures: generator, 95oC; condenser, 40oC; evaporator, 5oC; and absorber, 35oC. The flow rate of solution delivered by the pump from the absorber to the generator is 0.45 kg/s. Determine the following:a. Refrigerating Capacityb. Coefficient of Performancec. Heat rejected in the Condenserd. Heat rejected in the Absorberarrow_forward
- 1.) Calculate the heat transfer or the work for each step of a Rankine cycle. Also calculate the thermodynamic efficiency of the cycle. The boiler operates at 19.8 bar and superheats the steam to 600°C. The condenser operates at 0.10 bar and the turbine is adiabatic and reversible.arrow_forwardIn an ideal Rankine cycle, steam is generated at 4.1 MPa and 480 deg. C. The condenser is at 32 deg. C. Determine: a. The cycle thermal efficiency b. For the engine with the same end states, the thermal efficiency and steam rate.arrow_forwardPower plant.arrow_forward
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